Tomioka (Tomioka Silk Mill)
Kanto, Japan · Town / small city
A UNESCO World Heritage Site: Japan's first modern silk mill (1872), built with French technology to modernize the country's silk industry during the Meiji era, its main brick hall still standing, alongside the huge east and west cocoon warehouses and the original reeling-machinery layout; the town of Tomioka itself preserves Meiji-period streets tied to the mill's history.
The essentials
Getting there
Train — Private Joshin Dentetsu line from Takasaki station to Jomo-Tomioka, ~35min, ¥810, trains every 30-60min. A 100% private route with no JR segment at all, not covered by any train pass. The station is a 15-minute walk from the mill, or a short local taxi/bus ride.
Frequently asked questions about Tomioka (Tomioka Silk Mill)
How many days do you need in Tomioka (Tomioka Silk Mill)?
1 day minimum for it to be worth it. There are 12 documented activities in Tomioka (Tomioka Silk Mill), so it keeps giving with more time.
How do you get to Tomioka (Tomioka Silk Mill)?
Train: Private Joshin Dentetsu line from Takasaki station to Jomo-Tomioka, ~35min, ¥810, trains every 30-60min. A 100% private route with no JR segment at all, not covered by any train pass. The station is a 15-minute walk from the mill, or a short local taxi/bus ride.
Can you visit Tomioka (Tomioka Silk Mill) in a day?
Yes. Tomioka (Tomioka Silk Mill) works well as a day trip, usually from Takasaki, with no need to change accommodation.
What must you see in Tomioka (Tomioka Silk Mill)?
What is marked as a must-see: Main compound of the silk mill.
Is Tomioka (Tomioka Silk Mill) expensive?
Spend level low by Japanese standards. Factor in the per-night tourist tax as well, which varies from city to city.
What to do in Tomioka (Tomioka Silk Mill): 12 activities
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Main compound of the silk mill 2 h must-see
The 104-metre-long reeling hall (Soko), built in 1872 with French techniques and Japanese-fired brick, with the original silk-reeling machinery layout still visible; a UNESCO World Heritage Site since 2014 for its role in Japan's industrial modernization.
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East and West cocoon warehouses 1 h
Two huge two-storey brick warehouses that once stored silk cocoons before processing, now housing exhibits on the mill's history and Japan's silk industry.
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Ichinomiya Nukisaki Shrine 1 h
The principal shrine of the old province of Kozuke, with a layout unique in Japan: you climb the stairway and then descend to the main precinct; it also preserves a very rare divination rite using deer shoulder blades.
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Konnyaku Park 1.5 h
Fifteen minutes away: a free tour of a konnyaku factory (Gunma produces almost all of Japan's) and an all-you-can-eat buffet of the product in every imaginable form.
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Mount Myogi and its shrine 5 h
One of the most spectacular rock mountains in Japan, a forest of stone spires with a shrine at its foot and a visitor centre designed by Kengo Kuma; the ridge routes are serious, and there are gentle alternatives.
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Silk workshops 1.5 h booking
Reeling with a hand frame (zaguri), dyeing or weaving Tomioka silk alongside local artisans, instead of only seeing the mill from outside.
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Gunma Museum of Natural History 2 h
A large, very well put together museum with dinosaur skeletons and the natural history of the region, designed for family visits.
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Gunma Safari Park 3 h
A safari by car or by caged bus through an enclosure of lions, tigers and rhinos, within Tomioka itself.
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Horumon-age, the local fry-up 1 h
A dish typical of the city which, despite the name, contains no offal: battered fried meat served in the long-standing bars of the centre.
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Obata castle town and Rakusan-en garden 2 h
In the neighbouring municipality: water channels from an old castle town and a restored Edo-period garden, very quiet.
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Tomioka Donto Matsuri 2.5 h only one weekend in mid-October
An autumn festival with floats and taiko drums through the streets of the historic quarter.
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Tomioka's historic street 1 h
Meiji-era streets beside the mill, with merchant houses and small restaurants historically tied to the city's silk-industry boom.
What only happens on specific dates
- Tomioka Donto Matsuri one weekend in mid-October
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